I built a full sized guyed vertical and carried it in my luggage to ZF2
and VP2M. It was a little scary putting up, with the XYL but it worked
pretty well.
Another option for loading a short vertical is to use thee conductive guys
at the top (sloping toward the ground at ~45 degrees). I did this on 160m
as a temporary contest antenna when I was still living at my parents home.
John KK9A - P40A in next weekend's CQWW Phone contest.
To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] What do do on 80 when height restricted?
From: "Ed Sawyer" <sawyered@earthlink.net>
Reply-to: sawyered@earthlink.net
Date: Mon, 24 Oct 2016 10:38:08 -0400
I have dealt with this problem a couple of times on DXpeditions. Here is
what worked for me and I use some of this solution today at my home station.
I have found that central loading of elements that reduce the length of a ¼
wave leg to about 35ft per leg is a good compromise of bandwidth, loss, and
performance options.
On DXpeditions, I have used a 35 foot ¼ radiator with MANY radials under it,
successfully. Bandwidth is about 75khz.
The thing I don?t like about really short inverted Ls is the horizontal
portion being too long and low really distorts the pattern in the desired
direction and is higher loss to ground than a nice center loaded radiator.
Model it and see for yourself ? especially if your ground conductivity is
poor.
Ed N1UR
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